Prosecution Insights
Last updated: April 19, 2026

Examiner: ZHANG, TINA

Tech Center 3700 • Art Units: 3785

This examiner grants 56% of resolved cases

Performance Statistics

56.1%
Allow Rate
-13.9% vs TC avg
124
Total Applications
+46.7%
Interview Lift
1287
Avg Prosecution Days
Based on 82 resolved cases, 2023–2026

Rejection Statute Breakdown

4.5%
§101 Eligibility
21.4%
§102 Novelty
51.2%
§103 Obviousness
20.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19315416 A RESPIRATORY OBSTRUCTION REMOVAL DEVICE Final Rejection DCSTAR INC.
19036935 RESPIRATORY OBSTRUCTION REMOVAL DEVICE Non-Final OA DCSTAR INC.
17243106 METHODS OF ASSEMBLING PERSONAL AIR PURIFYING RESPIRATORS Final Rejection FORD GLOBAL TECHNOLOGIES, LLC
17753586 RESPIRATORY THERAPY SYSTEM AND APPARATUS Final Rejection Fisher & Paykel Healthcare Limited
18109510 SYSTEMS AND METHODS FOR DELIVERY OF THERAPEUTIC GAS Non-Final OA Mallinckrodt Pharmaceuticals Ireland Limited
17055365 METHOD AND APPARATUS FOR PULSATILE DELIVERY OF NITRIC OXIDE Non-Final OA Mallinckrodt Pharmaceuticals Ireland Limited
18062437 INHALER DEVICE, DISPLAY DEVICE, DISPLAY METHOD, AND PROGRAM Final Rejection Japan Tobacco Inc.
17857484 ULTRASOUND-CONTROLLED TRAINING PROGRAM FOR INDIVIDUALIZED AND AUTOMATIC WEANING Non-Final OA Koninklijke Philips N.V.
18007516 FEEDBACK PROVIDING FACIAL MASKS Final Rejection University of Cincinnati
17657375 HUMIDIFIER Final Rejection Murata Manufacturing Co., Ltd.
17656936 CLOSED LOOP CONTROL IN MECHANICAL VENTILATION Final Rejection ZOLL Medical Corporation
18272222 SPRAYER Non-Final OA NIPRO CORPORATION
17293776 HUMIDIFICATION WITH HME AND HEATED AIR DELIVERY TUBE Final Rejection RESMED PTY LTD
18552214 REINFORCED TUBES Non-Final OA SMITHS MEDICAL INTERNATIONAL LIMITED
17910102 METHOD AND SYSTEM FOR CONTROLLING A LEVEL OF VENTILATORY ASSIST APPLIED TO A PATIENT BY A MECHANICAL VENTILATOR Non-Final OA UNITY HEALTH TORONTO
17825053 SYSTEM AND METHOD FOR DISPENSING PLANT ESSENCES, BOTANICAL FLUIDS, ISOLATES, AND OTHER DISTILLATES Non-Final OA Hypnos Virtual Inc.
18680683 APPARATUS AND METHOD FOR SEALING THE ORAL CAVITY TO PROMOTE NASAL BREATHING Non-Final OA SomnoSeal
17620794 PLASMA ENHANCED AEROSOL DEVICE Final Rejection UNIVERSITEIT GENT
17779028 CARBON DIOXIDE BASED METERED DOSE INHALER Non-Final OA KINDEVA DRUG DELIVERY L.P.
17937844 SUBSTANCE DELIVERY MASK Final Rejection NUECOLOGY BIOMEDICAL INC.
18020466 RESPIRATORY MACHINE Non-Final OA Sodastream Industries Ltd.
18263500 FILTRATION ELEMENT AND USES THEREOF Non-Final OA Sion Biotext Medical Ltd.
18268510 FLEXIBLE ARTICULATING INTUBATION TOOL Non-Final OA TJB Medical, Inc.
18256737 IMPROVEMENTS RELATING TO FACE MASKS Non-Final OA INTERSURGICAL AG
18256566 IMPROVEMENTS RELATING TO FACE MASKS Non-Final OA INTERSURGICAL AG
17266773 METHOD FOR OPERATING AN ACTUATOR IN A MEDICAL APPARATUS, AND DEVICE THEREFOR Final Rejection IMTMEDICAL AG
18040593 Ultrasonic Gas Flow Calibration Device Non-Final OA USCOM Limited
18055960 SYSTEMS AND METHODS OF USING A MECHANICAL VENTILATOR TO FACILITATE THE MOVEMENT OF SECRETIONS Final Rejection Breas Medical AB
17587950 METERED DOSE INHALER Final Rejection Vitapul Inc.
17621544 VENTILATED INTUBATION METHOD AND APPARATUS Final Rejection Airway Medical Innovations Pty Ltd

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